Troll quest Troll spirits are still faction bugged and attack the trolls. Been like this for a while I think. The troll spirits are almost always killed by the trolls before you even see them.
The ending script for the crumbled ruins quest in the Lowerdark is still broken. You cannot close/finish the quest.
Troll faction bug should be fixed next reset.
Killing the boss of the crumbing ruins should now complete the quest next reset.